Valve.



M. R. GREENLEE.

VALVE.

APPLIOATION FILED FEB. 18,1908

- 913,491. y Patented Feb.23,1909.

animator,

THE Mamas PETERS co, wnsmmznm, n. c.

MORTIMER R. GREENLEE, OF \VADESTO\\"N, WEST VIRGINIA.

Specification of Letters Patent.

Patented Feb. 23, 1909.

Application filed February 18, 1908. Serial No. 416,524.

To all whom it may concern:

Be it known that I, MORTIMER R. GREEN- LEE, a citizen of the UnitedStates of America, residing at Wadestown, in the county of Monongaliaand State of Vest Virginia, have invented certain new and usefulImprovements inValves, of which the following is a specification,reference being had therein to the accom ,anying drawing.

T is invention relates to valves, and the primary obi'ect of myinvention is, to provide a novel va ve that can be used as a check valveor as. an ordinary straight-way valve.

A further object of my invention is to provide a sim le, durable andinexpensive valve that can be easily adjusted, whereby the same can beused for numerous purposes.

With these and other objects in view which will more readily appear asthe invention is better understood, the same consists in the novelconstruction, combination and arrangement of parts to be presentlydescribed and then specifically pointed out in the appended claim.

In the drawings: Figure 1 is a vertical sectional view of the valveconstructed in accordance with my invention, Fig. 2 is an ele vation,partly in section, of a cage used in connection with the valve, and Fig.3 is an elevation of a cage plug.

In the accompanying drawings, 1 designates a valve body having a rightangular interiorly screw threaded extension 2. This valve body isprovided with interior threads 3 for the threaded ends of pipes (notshown). The valve body is formed with a partition 4 having a valve seat5 provided with an opening 6, establishing communication between bothends of the valve body.

In the interiorly threaded extension 2 is detachablymounted a cap?having a conventional form of stufiing box 8 closed by a gland 9.Adjustably mounted in the cap 7 is a valve stem 10, provided upon itslower end with a head 1 1, and upon its upper end with a handle or wheel12.

Ada ted to engage the valve seat 5 and close t e opening 6 is a cage 13,said cage havin diametrically opposed openings 14 forme therein. Theopenings 14 are provided toenable the back pressure to operate directlyon the upper face of the bottom of the cage for maintaining said bottomin engagement with the valve seat. The said bottom constituting thevalve. The cage 13 is slidably mounted upon the valve stem 10 throughthe medium of a plug 15, this plug being screw threaded in the cage 13,as at 16.

As illustrated in Fig. 1 of the drawings, the valve is in position to beused as a check valve, the head 11 of the valve stem 10 permitting ofthe cage being elevated, due to a pressure in the direction of the arrowA of Fig. 1 of the drawings. A pressure in the direction of the arrow Bseats the cage 13 and prevents the plug from being elevated in the valvebody. To prevent a movement of the cage 13, the valve stem 10 is rotateduntil the head 11 thereof engages the bottom of the cage and preventsits elevation by a pressure in the direction of the arrow A. The cage 13can be elevated to open the valve, b screwing upwardly upon the valvestem, al owing a clear passage through the opening 6 of the valve seat5.

It is thought that my invention will be fully understood from theforegoing description, taken in connection with the drawings, and Ireserve the right to utilize my valve for various purposes and to makesuch changes in the structural details thereof as are permissible by theappended claim.

Having now described my invention what I claim as new, is

The combination with a valve casing provided with a partition formedwith an opening and a valve seat, of a valve adapted to engage saidseat, a vertically-extending cage formed integral with the upper face ofthe valve and ofsmaller diameter than the diameter of the valve, saidcage having its side provided with openings whereby the application ofback pressure is had against the upper face of the bottom so as tomaintain the valve in engagement with its seat, said cage further havingits top formed with a screw threaded opening, an apertured plug havingperipheral threads engaging the threads of said top whereby the plug isconnected to the cage, and an adjustable valve stem eX- i head of thestem is out of engagement with tending through said Iplug and having itsthe bottom of the cage. 7 10 lower end formed Wit a head of greater Intestimony whereof I ahix my signature diameter than the opening of theplug 1 in the presence of tWo Witnesses. 5 whereby the stem is preventedfrom separat- MORTIMER R. GREENLEE.

ing from the cage, said stem providing means Witnesses: for retainlngthe valve on its seat and ai F. H. MLLLAN, guide for the shifting of thecage When the L. H. HAUGHT.

